Turbulent Reynolds

Dear All, I am solving channel flow. I just wonder whether the undimensional values those I have calculated are correct or not? I am to draw y+ versus u+ k+ e+ **** which of Uf is correct? uf=cmu**.25*sqrt(k(first node after wall) uf=sqrt(viscosity/density*u(first node after wall)/y(first node after wall)) *****

yplus=density*uf*y(each node)/(viscosity)

uplus=u(each node)/uf

kplus=k(each node)/uf**2

epsilonplus=epsilon(each node)/(uf**4/viscosity/density)

furthermore, What is The turbulent reynolds(Ret) found in DNS data.eg Ret=180,380,590 of a channel flow?

Is it Ret=uf*H(channel Half with)/nu? at which section? should i change bulk Reynold to reach this Ret?